Answer:
It is important because if your cells do not reproduce you would eventually run out of cells and die.
Explanation:
Having body fat contributes to having a menstrual cycle. If a woman loses too much body fat, she can stop having her menstrual cycle because you need a certain amount for it to be able to function as normal. I don't think the body would benefit from ceasing to menstruate, because at that point it isn't really healthy. However, usually if a woman gains back some of the body fat or starts eating fattier foots/exercising less, her period will start again.
CLOSE YOUR EYES IN A DAR ROOM AND DONT THINK BOUT ANYTHING WHILE BEING WARM NOT HOT AND SWEATY
Could it be Birth control?